Table 1.

Article inclusion and exclusion criteria.

Inclusion criteria	Exclusion criteria
(1) A clear diagnosis of COVID-19	(1) Temperature >38°C
(2) Within 3–45 days after discharge (including patients in isolation sites after discharge and early home-based patients who have returned to the community)	(2) Heart rate > 120 bpm or <40 bpm, systolic blood pressure <90 mmHg or > 180 mmHg, respiratory rate >25 bpm or vital signs significant fluctuations calm state
(3) 18–80 years old	(3) Continuous oxygen therapy was needed
(4) Voluntarily agreed to join the queue and cooperate with the relevant assessments	(4) Patients with myocarditis, pulmonary hypertension, congestive heart failure, acute renal failure, fresh venous thromboembolic disease, unstable fracture, etc., who were not suitable for exercise
	(5) Conscious disorders, cognitive dysfunction, mental disorders, balance disorders, severe bone and joint diseases, and other impact assessment patients
	(6) Other conditions of inability to cooperate with rehabilitation treatment